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Amazon’s latest Fire TV is faster and more powerful than the old model, but more importantly, it supports ultra-detailed 4K video: TV and movies in four times the resolution of Full HD. Of course, you’ll need a 4K set to enjoy all those extra pixels, but if you’re thinking of making the upgrade soon, this streamer is a tele-futurist’s delight. With the added attractions of neat voice controls and great gaming functionality, it’s the most complete streaming box available.